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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • Gestion de la ferme

    2 mars 2010, par

    La ferme est gérée dans son ensemble par des "super admins".
    Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
    Dans un premier temps il utilise le plugin "Gestion de mutualisation"

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

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  • How to grab voice and video in ffmpeg/mplayer/mencoder ? [closed]

    4 février 2013, par Kill Kill

    My target is to grab voice and video via webcamera.
    There are three ways to do :

    1.ffmpeg

    ffmpeg -f oss -i /dev/dsp -f video4linux2 -r 25 -b 500000 -s 320x240 -i /dev/video0 out.mpg  
    
WARNING: gnome-keyring:: couldn't connect to: /home/debian/.cache/keyring-4Hzs4r/pkcs11: No such file or directory  
    
ffmpeg version 0.8.5-6:0.8.5-1, Copyright (c) 2000-2012 the Libav developers  
    
built on Jan 13 2013 16:02:15 with gcc 4.7.2  
    
*** THIS PROGRAM IS DEPRECATED ***  
    
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.  
    
[oss @ 0x9d63c60] /dev/dsp: No such file or directory  
    
/dev/dsp: Input/output error

    in my computer how to revise it ?

    2.mplayer :

    mplayer tv:// -tv driver=v4l2:input=0:width=640:height=480:fps=25 -vo x11  

    I can see the video when the command run, how can I save the output into a file and grab the voice ?

    3.mencoder :

    mencoder tv:// -tv driver=v4l2:width=800:height=600:device=/dev/video0:fps=30:outfmt=yuy2:forceaudio:alsa:adevice=hw.2,0 -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1800 -ffourcc xvid -oac mp3lame -lameopts cbr=128 -o output.avi  
    

    
MEncoder svn r34540 (Debian), built with gcc-4.7 (C) 2000-2012 MPlayer Team  
    
success: format: 9 data: 0x0 - 0x0  
    
TV file format detected.  
    
Selected driver: v4l2  
    
name: Video 4 Linux 2 input  
    
author: Martin Olschewski   
    
comment: first try, more to come   
    
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.  
    
Selected device: PC Camera  
    
Capabilities: video capture read/write streaming  
    
supported norms:  
    
inputs: 0 = zc3xx;  
    
Current input: 0  
    
Current format: unknown (0x4745504a)  
    
tv.c: norm_from_string(pal): Bogus norm parameter, setting default.  
    
v4l2: ioctl enum norm failed: Inappropriate ioctl for device  
    
Error: Cannot set norm!  
    
Selected input hasn't got a tuner!  
    
ALSA lib pcm_hw.c:1401:(_snd_pcm_hw_open) Invalid value for card  
    
Error opening audio: No such file or directory  
    
ALSA lib pcm_hw.c:1401:(_snd_pcm_hw_open) Invalid value for card  
    
Error opening audio: No such file or directory  
    
ALSA lib pcm_hw.c:1401:(_snd_pcm_hw_open) Invalid value for card  
    
Error opening audio: No such file or directory  
    
v4l2: ioctl set mute failed: Invalid argument  
    
v4l2: 0 frames successfully processed, 0 frames dropped.  
    
============ Sorry, this file format is not recognized/supported =============  
    
=== If this file is an AVI, ASF or MPEG stream, please contact the author! ===  
    
Cannot open demuxer.  
    

    
Exiting...  

  • ffplay : avoid direct access to max_lowres use av_codec_get_max_lowres()

    3 octobre 2013, par Michael Niedermayer
    ffplay : avoid direct access to max_lowres use av_codec_get_max_lowres()

    This avoids future ABI issues when the field is moved to the end of the
    
struct.
    

    Reviewed-by : Marton Balint <cus@passwd.hu>
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] ffplay.c

  • Merge commit ’b1db33159fdc2da4bdd8c75e4ff9a7dd0ef2f0c2’

    17 septembre 2013, par Michael Niedermayer
    Merge commit ’b1db33159fdc2da4bdd8c75e4ff9a7dd0ef2f0c2’

    * commit ’b1db33159fdc2da4bdd8c75e4ff9a7dd0ef2f0c2’ :
    
  ffv1 : Make sure at least one slice context is initialized
    

    Conflicts :
    
	libavcodec/ffv1.c
    

    This condition is not possible in ffmpegs ffv1 code and already
    
checked for by assert() for the case that some future changes make it possible.
    
Thus merge just for meta-data
    

    Merged-by : Michael Niedermayer <michaelni@gmx.at>

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